富氧区域火灾危险性分析及其防范

富氧区域具有极大的火灾危险性,在富氧状态下不仅能使通常不燃或难燃的物品变得易燃,而且还会扩大可燃物的燃烧范围,加快可燃物的燃烧速度。因此,必须充分认识富氧区域的火灾危险性,严格富氧区域操作的安全防范措施,确保富氧区域操作安全。     

The case for Bush revisionism: Reevaluating the legacy of America’s 43rd president

This article reassesses the foreign policy legacy of George W. Bush in light of the emerging historical record of his administration. We conclude that, whereas Bush’s foreign policy was in widespread disrepute when he left office in 2009, that reputation is likely to improve – perhaps significantly – in the coming years. We identify six particular arguments that lend credence to an emerging ‘Bush revisionism.’ To be clear, we do not necessarily argue that the balance sheet on Bush’s foreign policy was positive, but the arguments presented here are likely to generate a more sympathetic and favorable historical assessment of Bush’s presidency over time.     

油改气汽车火灾原因分析与防范措施

介绍了“油改气”汽车的概念及分类,从改装工艺、关键零部件质量、监督验审、燃气质量等几个方面详细分析了“油改气”汽车的火灾原因,重点就控制燃气泄漏,提出了完善法规体系、严格监督、驾驶人员自觉履行各项安全规程、提高燃气质量等火灾防范措施。     

Attacking the Atom: Does Bombing Nuclear Facilities Affect Proliferation?

Abstract

What are the consequences of military strikes against nuclear facilities? In particular, do they ‘work’ by delaying the target states ability to build the bomb? This article addresses these questions by conducting an analysis of 16 attacks against nuclear facilities from 1942 to 2007. We analyze strikes that occurred during peacetime and raids that took place in the context of an ongoing interstate war. The findings indicate that strikes are neither as uniformly fruitless as the skeptics would suggest, nor as productive as advocates have claimed. There is evidence that the peacetime attacks delayed the target's nuclear program, although the size of this effect is rather modest. The wartime cases were less successful, as attacks often missed their targets either due to operational failure or limited intelligence on the location of critical targets. In our concluding section we show that many of the conditions that were conducive to past success are not present in the contemporary Iran case. Overall, our findings reveal an interesting paradox. The historical cases that have successfully delayed proliferation are those when the attacking state struck well before a nuclear threat was imminent. Yet, this also happens to be when strikes are the least legitimate under international law, meaning that attacking under these conditions is most likely to elicit international censure.     

WHAT ARE THE ODDS?

Nuclear optimists and pessimists disagree on whether the odds of nuclear war are low or high. This viewpoint assesses the odds of nuclear war over the past sixty-six years, exploring three pathways to nuclear war: an international crisis leading directly to nuclear war, an accident or misperception leading to nuclear escalation or nuclear retaliation against an imaginary attack, and a general conventional war leading to nuclear war. The assessment is based on the application of Bayes's theorem and other statistical reasoning and finds that the expected probability of nuclear war during this historical period was greater than 50 percent. This level of risk is unacceptably high. It is therefore urgent that effective measures be taken to substantially reduce the risk of nuclear war.     

现代灭火救援行动中安全隐患探析

以现代灭火救援行动中存在的安全隐患为切入口,归纳出爆燃、危险品、烟雾、高温、井坑池、电流和建筑物坍塌等七种主要威胁灭火人员安全的危险隐患,详细解析了这七种危险源形成原因和危害特点,并针对灭火救援行动,提出了相应的防范措施。     

现役装备以可靠性为中心的维修分析

以“以可靠性为中心的维修分析”(RCMA)在典型装备的应用实践为例,论述了现役装备进行RCMA的必要性和可能产生的效益及RCMA的过程,提出了现役装备RCMA的特点和正确分析的措施。     

伊拉克战争对中东地区乃至世界军品贸易的影响

在分析了伊拉克战争对中东地区军品贸易影响的基础上,重点分析了其对世界军品贸易的深刻影响———加剧军备竞赛、刺激军工技术发展、引起军贸格局及产品结构发生变化、国际军控形势更加严峻。     

The politics of renewed quest for a Biafra Republic in Nigeria

The quest for a Biafran Republic by the Igbo ethnic group has become a recurring demand in Nigeria since the late 1960s. The agitation has been premised on claims of marginalisation and exclusion of the Igbo people in the Nigerian body politic. In spite of the consistency of the agitation through various Administrations, there was a noticeable lull in such demands during the time of President Goodluck Jonathan, only to assume a frightening proportion since the advent of the Administration of President Muhammadu Buhari. This article locates the factors in the outcomes of the 2015 general elections: the question of inclusion and representation; the unfinished nature of the Nigerian civil war; economic challenges, miscalculation both on the part of the Igbo people and indiscretion in the initial appointments made by President Muhammadu Buhari. The article recommends political restructuring of Nigeria as one of the ways to address secessionist tendencies.